Book cover and method of applying the same



raranr cation.

ERNEST HALTER JACKSON, F AUSTIN, TEXAS.

BOOK COVER AND METHQD OF APPLYING THE fiAllIE.

Application filed February 20, 1925.

To all whom it may concern:

Be it known that I, ERNEST TV. JAoKsoN, a citizen of the United States, and a resident of Austin, in the county of Travis and State of Texas, have invented certain new and useful lmproven'ients in a Book Cover and Method of Applying the Same, of which the following is a specification.

My invention relates to book covers for protecting the binding of books, and it consists in the combinations, constructions and arrangements herein described and claimed.

An object of the invention is the provision of a book cover which can be conveniently and accurately applied to the binding of a book of any one of a plurality of different sizes within a considerable range to protect the book binding.

A further object of the invention is the provision of a book cover of the character described which is formed in a single piece and can be folded neatly on the book binding and securely held in place on the book binding.

A further object of the invention is the provision of an improved method for applying a onepiece book cover so that the book binding to which the cover is applied will be protected by a double thickness of the cover at the corners of the book binding and at the upper and bottom back of the book binding.

Other objects and advantages of the invention will be apparent from the following description, considered in conjunction with the accompanying drawings, forming a part of this application, in which Figure 1 is a plan view showing a book cover embodying the invention in the partly folded position with a book opened out thereon in centered position on the book cover.

Figure 2 is a fragmentary plan view Show ing a corner portion of the book cover and the corresponding corner portion of the book binding after the first step of applying the corner portion of the book cover to the book binding has been accomplished.

Figure 3 is a view similar to Figure 2 after the second step of applying the corner portion of the book cover to the book binding has been effected, and

Figure 4-. is a view similar to Figures 2 and 3 showingthe corner portion of the book cover in applied position on the corner POI? tion ofithe'book binding. 1

edges of the Ser al No. 10,579.

The improved book cover is auxiliary to the regular binding of a book which is like ly to be handled frequently, such as a text book or a book that can be obtained from a public library. The improved book cover is formed of a substantially rectangular blank of a heavy and relatively tough paper or like material. The blank has series of spaced parallel lines a produced on the inner face thereof at opposite sides of the transverse median line of the blank, each series of lines (0 extending from near the upper or lower edge of the blank at one side of the transverse median line of the blank and the lines a being inclined from their outer ends toward the transverse median line of the blank, corresponding lines a at opposite sides of the transverse median line adjacent to the upper and lower edges of the blank being equi-distant from the transverse median line of the blank. Corresponding lines a at opposite sides of the transverse median line adjacent to the upper edge of the blank and corresponding lines a at opposite sides of the transverse median line adjacent to the lower edge of the blank are merged into each other at their inner ends by curved lines o. The upper and lower edge portions of the blank haveproduced on the inner face thereof parallel lines 0 which intersect the lines a and are bi-sected by the transverse median line of the blank. The lines a of each series are numbered sequentially, the lines a farthest from the transverse median line of the blank being indicated by a number of less value than the numbers used to designate the remaining lines a. The lines 0 also are numbered in order, beginning with the line 0 nearest to the longitudinal median line of the blank.

Each corner portion of the blank has a line cl produced thereon extending from the corner of the blank inwardly on the inner face of the blank in position to bisect the corner portion of the blank. The lines 03 also intersect at right angles lines 0 which are produced on the inner faces of the corner portions of the blank and extend at an angle of forty-five degrees to adjacent marginal edges of the blank. The lines 6 on each corner portion of the blank are numbered in order, beginning with the line 6 nearest to the corner of the blank.

The cover is applied on the binding 1 of a book substantially as follows The book is opened flat and placed on the a blank so that the corners of the book binding lie on the corner bisecting lines (Z at the points on the corner bisecting lines Z which are intersected by corresponding lines 6. At this time, the book binding will be dis posed in centered relation on the'blank so that the upper and lower edges of the back of the book binding will lie on or adjacent to corresponding lines 0 adjacent to the upper and lov rer edges of the blank and the longitudinal edges of the back of the book binding will terminate their upper and lower ends on corresponding lines a. The blank then is slitted from its upper and lower edges along the lines a on which the ends of the longitudinal edges of the back of the book binding lie to the upper and lower edges of the back of the book binding, thus producing reinforcing flaps, such as that indicated at S in Figure 1; The flaps 3 are folded inwardly on the body of the blank underneath the back of the book binding and it is manifest that the cover will be of double thickness at upper and lower end portions of the back of the book binding. Each corner portion then is folded along a line 0 which is located outwardly of the adjacent corner of the book binding, thus producing a reinforcing corner flap -ft. This reinforcing corner flap is of sutl'icient length to ex end underneath the adjacent corner portion of the book binding, as indi cated at 5 in Figures 2 and 3. The folded corner portions of the book blank then are folded agaii'i along the lines 6 on which the corners of the hook binding lie, whereb a double thickness of the blank will be disposed against both the inner and outer faces of each corne portion of the bookbinding, as shown in Figure 3; i This folding of the eorner portions of the blank and the provi= sion and the folding of the protective flaps for the end portions of the back of the book binding will produce a flap 6 at each longitudinal edge of the book binding between the reinforcing flap 3 and each of the folded over doubled corner flaps and also will produce a flap 7 i at each side edge of the bookbinding between adjacent folded over doubled corner portions of the blank. Ad-

jacentflaps 6 and 7 are folded inwardly 'over the side members of the book binding and will meet or nearly meet along lines coincident with the bisector of the adjacent corner portion of the book binding. The adjacent end portions of the inturned flaps 6 and 7 are held in place by triangular binding strips 8 which have adhesive on their inner faces and are disposed across the meeting or adjacent edge portions of the flaps 6 and 7 so that equal portions of each strip are disposed on adjacent flaps 6 and 7.

From the foregoing description of the various parts of the device, it will be main fest that the improved cover can be provided at a relatively low cost and can be quickly, easily and accurately applied to a book binding of any one of a plurality of sizes within a considerable range. lVhen the book cover is applied in the manner hereinbefore described, the outer face of each corner portion of the book binding and the outer faces of the upper and lower edge portions of the back of the book binding will be covered by a double thickness of the book cover so that the reinforcement of and the protection for the book binding is doubled at the places which are subjected to the greatest wear when the book is handled in an ordinary manner. The improved cover therefor will last a relatively long time in the service for which it is intended. 7

Obviously, the invention is susceptible of embodiment in forms other than that which is illustrated in the accompanying ings and I therefore consider as my own all such modifications and adaptations thereof as fairly fall within the sco e of the appended claims.

I claim:

1. A one piece book cover for the binding of a book comprising a substantially rectangular blank having series of parallel lines produced on the inner faces of the corner portions of the blank said lines extending at an angle of approximately forty-live degiees to the longitudinal edges of the book blank and indicating lines on which said eornorportions of the blank may be folded inwardly on the body of the blank underheath the back of the book binding to provide a book binding with a. cover of double thickness at the outer faces of the corner portions of the Book binding, the outer face of the book cover being continuously smooth throughout its area when applied.

2. A one piece book cover for the binding of a book comprising a substantially rec'- tangular blank having series of parallel lines produced on the inner faces of the corner portions of the blank, said lines extending at an angle of approximately forty-five degrees to the longitudinal edges of the book blank and indicating lines on which said corner portions of the blank may be folded inwardly on the body of the blank under neath the back of the book binding to pro: vide a book binding with a cover of double thickness at the outer faces of the corner portions of the book binding, the outer face of the book cover being continuously smooth throughout its area when applied, each of said corner portions of the blank having a line produced thereon intersecting said first named lines at right angles and bisecting the corner portion of the blank.

3. The herein described method of applying a one piece rectangular book cover to the binding of a book which comprises placing the book on the blank in centered.

drawrelation to the blank with the book binding opened out flat, then folding the corner portions of the blank along lines extending at angles of forty-five degrees to the longitudinal edges of the blank and located outwardly at the corners of the book binding so that the extreme corner portions of the blank underlie the corner portions of the book binding, then folding the doubled corner portions of the blank over the corner portions of the book binding along lines extending at the corners of the binding at angles of forty-five degrees to the longitudinal edges of the blank, and finally folding the marginal edge portions of the blank between said corner portions onto the' inner face of the book binding and securing the adjacent last named folded portions together at the corners of the book binding by strips of adhesive.

4. The herein described method of applying a substantially rectangular book cover blank to a book which comprises placing the book on the blank in centered relation to the blank with the book binding opened out flat, then making slits extending from the upper and lower edges of the book cover blank at opposite sides of the transverse median line of the blank to the adjacent upper and lower edges of the back of the book binding at opposite sides of the latter and folding the flaps thus produced inwardly on the body of the blank underneath the back of the book binding, then folding the corner portions of the blank onto the body of the blank so that the extreme corner portions of the blank underlie the corners of the book binding, then folding the doubled corner portions of the blank over the corners of the book binding onto the inner faces of the side members of the book binding, and finally folding the marginal edge portions which are located between the inturne'd flaps underneath the back of the book binding and the folded corner portions of the blank inwardly onto the inner faces of the side members of the book binding and securing the adjacent last named interned portions of the blank together and against displacement by a strip of adhesive.

ERNEST WVALTER JACKSON. 

